Shopping day was the best day of the month!

I had recently retired and finally could no longer go to work, and, as I had agreed with my young Master, I became his full-time slave.

I moved permanently into his apartment, gave him all my bank codes and passwords so he could receive my pension, and gave him everything I had and my savings.

The young man was addicted to games, worked freelance from time to time, and spent all day at home playing games and smoking marijuana with friends. Having me as a slave solved several of his problems, including his financial problems with my pension and all my savings; I started to clean the apartment, wash clothes, cook, and work as a domestic servant; he and his colleagues fucked me and made me suck them all the time.

I didn't leave the house for anything; I stayed there naked and working all the time. I only went out once a month when we went shopping, and I looked forward to that day all month long.

When we had to go for monthly purchases, he would make me walk ten blocks always to the same crappy supermarket in the worst part of the poor neighborhood where we lived. Before I left, he would lock my cock in a chastity cage, stick a three-inch butt plug in my ass, and order me to go around wearing only an old jockstrap and worn-out shorts that kept falling.

Walking around the neighborhood barefoot and practically naked, with a collar and leash, was very humiliating and exciting. I could feel my cock throbbing and dripping inside the cage, very horny as if it were going to explode. My Master would take an UBER and meet me at the grocery store. I had to be there to pay for the monthly groceries because he used the retirement voucher I had to sign.

The manager of this grocery store had figured out our thing and let me walk around the joint practically naked like that.

When it was time to pay, he always took me to the office and made me suck him and two other employees at the establishment as part of the payment. They saw my body covered in welts and marks from the beatings that my Master gave me regularly. While I was sucking the guys, the security guard at the grocery store liked to beat me brutally with the rubber truncheon they used to beat up little thieves.

After paying for the groceries, I walked back to the apartment, where my owner took his UBER right after I signed the voucher.

Shopping day was the best day of the month!